Home / 648.76-895.21-369.03

Finding the Fourth Proportional to 648.76, 895.21 and 369.03

Calculator

Solution

The fourth proportional to 648.76, 895.21 and 369.03 is: 509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.76 : 895.21 = 369.03 : x
  2. Step 2: Convert to fraction form
    648.76/895.21 = 369.03/x
  3. Step 3: Cross multiply
    648.76x = 895.21 × 369.03
  4. Step 4: Simplify right side
    648.76x = 330,359.35
  5. Step 5: Solve for x
    x = 330,359.35/648.76
  6. Step 6: Final answer
    x = 509.22

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.